Split DML tests.
Split DML tests.
Fixed https://github.com/igor-tkachev/bltoolkit/issues/205.
Fixed https://github.com/igor-tkachev/bltoolkit/issues/206.
Test for https://github.com/igor-tkachev/bltoolkit/issues/207.
Fixed https://github.com/igor-tkachev/bltoolkit/issues/209.